const path = require('path');

const mimeTypes = {
    'hqx':'application/mac-binhex40',
    'cpt':'application/mac-compactpro',
    'csv':['text/x-comma-separated-values', 'text/comma-separated-values',   'application/octet-stream', 'application/vnd.ms-excel', 'application/x-csv', 'text/x-csv', 'text/csv', 'application/csv', 'application/excel', 'application/vnd.msexcel'],
    'bin':'application/macbinary',
    'dms':'application/octet-stream',
    'lha':'application/octet-stream',
    'lzh':'application/octet-stream',
    'exe':['application/octet-stream', 'application/x-msdownload'],
    'class':'application/octet-stream',
    'psd':'application/x-photoshop',
    'so':'application/octet-stream',
    'sea':'application/octet-stream',
    'dll':'application/octet-stream',
    'oda':'application/oda',
    'pdf':['application/pdf', 'application/x-download'],
    'ai':'application/postscript',
    'eps':'application/postscript',
    'ps':'application/postscript',
    'smi':'application/smil',
    'smil':'application/smil',
    'mif':'application/vnd.mif',
    'xls':['application/excel', 'application/vnd.ms-excel', 'application/msexcel'],
    'ppt':['application/powerpoint', 'application/vnd.ms-powerpoint'],
    'wbxml':'application/wbxml',
    'wmlc':'application/wmlc',
    'dcr':'application/x-director',
    'dir':'application/x-director',
    'dxr':'application/x-director',
    'dvi':'application/x-dvi',
    'gtar':'application/x-gtar',
    'gz':'application/x-gzip',
    'php':'application/x-httpd-php',
    'php4':'application/x-httpd-php',
    'php3':'application/x-httpd-php',
    'phtml':'application/x-httpd-php',
    'phps':'application/x-httpd-php-source',
    'js':'application/x-javascript',
    'swf':'application/x-shockwave-flash',
    'sit':'application/x-stuffit',
    'tar':'application/x-tar',
    'tgz':['application/x-tar', 'application/x-gzip-compressed'],
    'xhtml':'application/xhtml+xml',
    'xht':'application/xhtml+xml',
    'zip':['application/x-zip', 'application/zip', 'application/x-zip-compressed'],
    'mid':'audio/midi',
    'midi':'audio/midi',
    'mpga':'audio/mpeg',
    'mp2':'audio/mpeg',
    'mp3':['audio/mpeg', 'audio/mpg', 'audio/mpeg3', 'audio/mp3'],
    'aif':'audio/x-aiff',
    'aiff':'audio/x-aiff',
    'aifc':'audio/x-aiff',
    'ram':'audio/x-pn-realaudio',
    'rm':'audio/x-pn-realaudio',
    'rpm':'audio/x-pn-realaudio-plugin',
    'ra':'audio/x-realaudio',
    'rv':'video/vnd.rn-realvideo',
    'wav':['audio/x-wav', 'audio/wave', 'audio/wav'],
    'bmp':['image/bmp', 'image/x-windows-bmp'],
    'gif':'image/gif',
    'jpeg':['image/jpeg', 'image/pjpeg'],
    'jpg':['image/jpeg', 'image/pjpeg'],
    'jpe':['image/jpeg', 'image/pjpeg'],
    'png':['image/png', 'image/x-png'],
    'tiff':'image/tiff',
    'tif':'image/tiff',
    'css':'text/css',
    'html':'text/html',
    'htm':'text/html',
    'shtml':'text/html',
    'txt':'text/plain',
    'text':'text/plain',
    'log':['text/plain', 'text/x-log'],
    'rtx':'text/richtext',
    'rtf':'text/rtf',
    'xml':'text/xml',
    'xsl':'text/xml',
    'mpeg':'video/mpeg',
    'mpg':'video/mpeg',
    'mpe':'video/mpeg',
    'qt':'video/quicktime',
    'mov':'video/quicktime',
    'avi':'video/x-msvideo',
    'movie':'video/x-sgi-movie',
    'doc':'application/msword',
    'docx':['application/vnd.openxmlformats-officedocument.wordprocessingml.document', 'application/zip'],
    'xlsx':['application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', 'application/zip'],
    'word':['application/msword', 'application/octet-stream'],
    'xl':'application/excel',
    'eml':'message/rfc822',
    'json':['application/json', 'text/json']
};

module.exports = (filePath)=>{
    let ext = path.extname(filePath)
            .split('.')
            .pop()
            .toLocaleLowerCase();

            if(!ext){
                ext = filePath;
            } 
    
    return mimeTypes[ext]||mimeTypes['txt'];
};
